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Major Customers and Sales by Country | 12 Months Ended
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Sep. 30, 2019
Geographic Areas Revenues From External Customers [Abstract] |
Major Customers and Sales by Country | 19. Major Customers and Sales by Country In 2019, no individual customer accounted for 10% or more of net revenues. In 2018, one Semiconductor customer individually accounted for 14% of net revenues. In 2017, one Semiconductor customer accounted for 13% of net revenues. Our net revenues for 2019, 2018 and 2017 were to customers in the following geographic regions:
|  | Years Ended September 30, |
|  | 2019 |  |  | 2018 |  |  | 2017 |
United States |  |  | 35 | % |  |  | 21 | % |  |  | 22 | %
Other |  |  | 6 | % |  |  | 3 | % |  |  | 3 | %
Total Americas |  |  | 41 | % |  |  | 24 | % |  |  | 25 | %
China |  |  | 18 | % |  |  | 30 | % |  |  | 23 | %
Malaysia |  |  | 5 | % |  |  | 8 | % |  |  | 8 | %
Taiwan |  |  | 10 | % |  |  | 9 | % |  |  | 10 | %
Other |  |  | 8 | % |  |  | 5 | % |  |  | 9 | %
Total Asia |  |  | 41 | % |  |  | 52 | % |  |  | 50 | %
Germany |  |  | 8 | % |  |  | 10 | % |  |  | 9 | %
Other |  |  | 10 | % |  |  | 14 | % |  |  | 16 | %
Total Europe |  |  | 18 | % |  |  | 24 | % |  |  | 25 | %
|  |  | 100 | % |  |  | 100 | % |  |  | 100 | %

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- Definition The entire disclosure for any concentrations existing at the date of the financial statements that make an entity vulnerable to a reasonably possible, near-term, severe impact. This disclosure informs financial statement users about the general nature of the risk associated with the concentration, and may indicate the percentage of concentration risk as of the balance sheet date. + References Reference 1: http://fasb.org/us-gaap/role/ref/legacyRef -Publisher FASB -Name Accounting Standards Codification -Topic 275 -URI http://asc.fasb.org/topic&trid=2134479 + Details
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